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Horn frequency is 200 Hz, velocity of truck is 20m/s, observer bike's velocity is 10m/s and air temperature is 77 degrees Farenheit.
(a) find the sound velocity.
(b) find the frequency at the observer's location.
(c) find the wavelength at the observer's place.
Near the surface of the Earth there is an electric field of about 150 V/m which points downward. Use conservation of energy to determine the difference in the speed of the two balls when they hit the ground
Gas is confined in a tank at a pressure of 11.3 atm and a temperature of 22.5°C. what is the pressure of the gas remaining in the tank
At one instant a bicyclist is 40m due east of a park's flagpole, going due south with a speed of 10m/s. Then 30.0s later, the cyclist is 40m due north of the flagpole.
Given that the carbon atom has a mass of 12 amu, how many carbon atoms are there in a diamond with a mass of 8 g
An equilateral glass prism is to be designed so that a light beam entering the prism perpendicular to the first face will be totally internally reflected once off the second face
A motorcycle and 58.0 kg rider accelerate at 2.8 m/s2 up a ramp inclined 10° above the horizontal. What is the magnitude of the net force on the rider
High speed stroboscopic photographs show that the head of a 246 g golf club is traveling at 56.2 m/s just before it strikes a 47.0 g golf ball at rest on a tee. Find the speed of the golf ball just after impact
A 10.0 kg block is to be projected across a rough horizontal floor by means of a compressed spring device. What is the work done by friction, in joules, as the block slides to a stop
You have a 200 resistor, a 0.400 H inductor, a 5.00 F capacitor, and a variable-frequency ac source with an amplitude of 3.00 V. At what frequency will the current in the circuit be greatest
A solenoid has a cross-sectional area of 2.20 10-4 m2, consists of 200 turns per meter, and carries a current of 0.56 A. Find the average current induced in the coil
A ray of light strikes a flat, 2.00-cm-thick block of glass (n = 2) at an angle of ? = 8.7° with respect to the normal, Find the angle of refraction at the top surface
An engine of the orbital maneuvering system (OMS) on a space shuttle exerts a force of 2.64×104N j^ over a time interval of 4.50s, What is the impulse of the force for this time interval of 4.50 s
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